Troll Hammer

The Troll Hammer is a weapon used by Noob Saibot and Taven in Mortal Kombat: Armageddon. It appears as a large sledgehammer with its hammer head being made out of a stone slab, which is then attached to the handle with straps.

Trivia

A troll is an internet term for those who cause grief and mischief in order to purposefully extract a negative response. This was intentionally given because of the name "Noob" (which, on the contrary, was a coincidence).

Some of Sub-Zero's moves in the Cryomancer variation in Mortal Kombat X have him create a similiar hammer out of ice.